I`m trying to start up Claude`s Deltavawe Papymerlin BT-module.In my case it is internal wired to Merlin`s HC jack.No other device is plugged into the HC jack at the same time.Merlin is switched on and BT module`s LED is blinking.

In Papywizard on Nokia N810 I opened the Bluetooth menu.In the device list BT module appears as " ? PapyMerlin ".I choose this " ? PapyMerlin " device and the next window to interconnect appears.The box "Passcode" is automatically filled with a 4-digit number which varies each time I try this procedure.The box "trustable device" is selected and I click on "OK"After this I get the message "interconnection failed. Authentication failed"

Is there a special 4-digit passcode I have to type in or is autofill OK, too?

Any ideas what`s wrong?

Oliver

Last edited by Undertable on Sun Oct 30, 2011 5:26 pm, edited 1 time in total.

thanks for Your answer.code 1234 was accepted and it seemed that PapyMerlin was interconnected.Then I tried to connect in papywizard "connecting, please wait..."BT`s LED changed from blinking into permanent lighting.Then I got the message "connection failed"After clicking "close" the LED was blinking againTried it several times with the same result.

Undertable wrote:thanks for Your answer.code 1234 was accepted and it seemed that PapyMerlin was interconnected.Then I tried to connect in papywizard "connecting, please wait..."BT`s LED changed from blinking into permanent lighting.Then I got the message "connection failed"After clicking "close" the LED was blinking againTried it several times with the same result.

LED Is supposed to be solid when link is established with Papywizard and blinking when it's not connected. After that I'm not familiar with Papywizard on Nokia. Are you able to try from a computer ? to be sure your bluetooth merlin head is working fine ?

I installed Papywizard 2.1.21 on the Win7 notebook.Adding the BT-module to the notebooks BT device list was no problem using code 1234"PapyMerlin" is in the list (without a question mark)Unfortunately the connection in papywizard failed, too

vincen wrote:Do you mean same Nokia N810 phone controls fine an other Bluetooth Merlin head ?

Yes

vincen wrote:if so, problem comes from the bluetooth module on this one or the head itself !

DidnÂ´t test the head before I modified it. I use the same type of BT module in my other Merlin head and that one works fine.Hope I didn`t kill something with my wiring but I pointed out that a component on the BT module is getting hot.Don`t know if this is normal.

Last edited by Undertable on Mon Oct 31, 2011 8:06 am, edited 1 time in total.

Undertable wrote:DidnÂ´t test the head before I modified it. I use the same type of BT module in my other Merlin head and that one works fine.Hope I didn`t kill something with my wiring but I pointed out that a component on the BT module is getting hot.Don`t know if this is normal.

Hum it should not be really hot ! I think you should double check your wiring between the BT module and the merlin electronic, something is probably wrong there

I checked BT wiring by comparing with wiring of the working Merlin and found no mistake so far.Tested the working Merlin again and found out that its BT-module is getting warm, too.I can`t touch the component directly because I glued that BT-board into Merlin`s rear cover.But in the area of the hot component, the bottom side of the PCB is getting warm, too

interesting news:I soldered the new BT-module to the switch of the old Merlin head and there it works!BT module is OK. Connected to the old Merlin head the "hot" component is getting a little bit warm but not hot.What does this mean now?

I reflected about what else could be wrong. The electronics housing is conductive.I assembled the jack from the wireless trigger (YONGNUO RF-602TX) in the housing. One of its contacts is connected to the housing in this way.I desoldered this wire and got BT connection! Nevertheless the BT-component is getting hot.

Last edited by Undertable on Mon Oct 31, 2011 8:14 pm, edited 1 time in total.

at the end I tested my new Merlin with the original power supply.The "hot component" does no longer getting hot, just warm to the touch.

All in all it seems to me that higher voltage is no good for the BT module.If I am right there are two possibilities:

1.) supply the BT with 14.8V and provide the mentioned component with additional cooling or2.) reduce the voltage for the BT module

Please feel free to give Your opinions what would be the best and how to implement(simply gluing a small block of copper or aluminium with heat sink glue on the component? Which glue? Where availlable? Circuit layout with list of parts, understandable for mechanics)

Best regards

Oliver

Last edited by Undertable on Tue Nov 01, 2011 7:53 am, edited 1 time in total.